469+341=?,268+467=?,436+745=?
756-37=?,975-617=?,930-127=?
93+?=829,230+?=750,304+?=980
38*7=?,9*28=?,709*4=?
366/2=?,744/8=?,522/6=?
---
?-204=875-445,112+105+467+138=?
732-240=?+343,567+391+216-961=?
260+?+366=961,422+451-294-382=?
294+?-581=493,999-252-133-488=?
运输大队长